Here on Gamespot there's an article about the next handheld from Nintendo and is the true succesor to the GBA (this means that whether it's a success or not the DS will still live on). From what's been shown so far it seems to be motion sensing like the Wii. This has been done before on a few GB games but there may be much more to this.

here is the article

http://www.gamespot.com/news/6176307.html?tag=latestnews;title;1